Gas-engine.



No. 731,956. PATENTBD JUNE 23, 1903.

c. ROSSLBR. GAS ENGINE.

APPLICATION FILED IEIB. 2'1. 1902.

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CHARLES ROSSLER, OF BUFFALO, NEW YORK.

GAS-ENGINE.

SPECIFICATION formingpart of Letters Patent N 0. 731,956, dated June 23,1903. Application filed February 27, 1902. Serial No. 95,874. (Nomodel.)

T0 (1 whom it may concern;

Be it known that I, CnARLEs RossLEE, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in Gas-Engines, of whichthe following is a specification, reference being had to theaccompanying drawings.

This invention relates to gas-engines of that type in which two pistonsworking in a single cylinder are employed, said cylinder having anigniting-chamber common to both pistons.

The invention has for its object to provide an improved drivingconnection between the pistons and the driving-shaft, whereby the strainexerted on the driving-shaft by the con necting-rod and one of thepiston-rods will be equalized, and to provide a vertically-slidable androcking bearing for the connecting- .rod, which connects the distantpiston with the driving-shaft.

Another object is to provide an engine without slideways andcross-heads, which I dispense with by the employment of two pistonrodson the piston connected to the crankshaft by the connecting-rod lyingoutside of the cylinder.

The invention consists, substantially, in the combination and relativearrangement of the parts, all as will be hereinafter more fullydescribed, as shown in the accompanying drawings, and as specificallypointed out in the appended claims.

In the drawings, Figure 1 is a side elevation of my improved engine.Fig. 2 is a sectional plan view of the same, the cylinder being shown inhorizontal section. Fig. 3 is a transverse section taken on line 5, Fig.2. Fig. 4: is an enlarged vertical section through thevertically-movable and rocking bearing, taken on line i a, Fig. 1. Fig.5 is a horizontal section taken on line 5 5, Fig. 4. Fig. 6 is avertical section taken on line 6 (i, Fig. 4.

Reference is to be had to the accompanying drawings, in which likeletters of reference refer to like parts in the several figures.

The letter A designates the bed-plate or base, which has thepillow-blocks 13 formed thereon, in which the crank-shaft 0, havingoppositely-disposed cranks c, is journaled.

The cylinder (designated by the letter D) is supported on the base inany suitable manner and has the usual water-jacket (Z surrounding thesame, and the igniting-chamber E, which is common to all gas-engines.This ignitin g-chamber is arranged midway between the ends of thecylinder, and the explosive force is directed against the pistons F Fand forces them outward. The piston F, being nearer the crank-shaft thanthe piston F, has connection with one crank of said crank-shaft by apiston-rod G, while the distant piston F is provided with twopiston-rods G, having their outer ends connected together by alaterally-extending arm G which acts as a pivot for one end of aconnecting-rod II, which has its opposite end secured to thecrank-shaft. The piston-rods G reciprocate in guides g, formed 011 orsecured to the cylinder. The two piston-rods provide a simple andeffective connection and prevent the possibility of the piston turningin the cylinder and also tend to prevent the end of the connectingrodlowering, which would otherwise be the tendency unless the usualslideway and crosshead were employed. This construction prevents alltwisting strains and alwaysleaves the parts free acting and easilyaccessible. It also reduces the number of moving parts and greatlystrengthens such parts as receive the severest strains. To properlysupport the connecting-rod II, a vertically-slidable and rocking bearingI is provided. To one side of the cylinder, near that end adjacent tothe piston-rods G, a U-shaped bracket J is secured by bolts j, andtherein the said bearing is slidably held. Vertically disposed guideribs j are formed on this bracket to prevent displacement of the bearingI, as will presently appear. The bearing I comprises a socket K, dividedcentrally and consisting of an upper half-section K and a lowerhalfsection K both held together by screws k or in any other suitablemanner. The socket is grooved, as at 7e, to fit the guide-ribs 7",formed on the bracket J, thus permitting of vertical movement, butpreventing lateral displacement. A spherical guide portion L is held inthe socket and is capable of rocking therein to compensate for thechange of angle of the connecting-rod caused by the raising and loweringof that end secured to the crankshaft. It is therefore apparent that thechange of angle of the connecting-rod is compensated for by thespherical guide portion L, while the ascension and descension of thesame at the point of the bearing is compensated for by the verticaltravel of the socket wherein the spherical guide portion L is held.

M designates the fly-wheel, secured to the crank-shaft, said fly-wheelhaving peripheral teeth m. M is a gear-wheel from which power may betransmitted to any desirable object. A dynamo or other suitablemechanical electric generator N is provided with a pinion n,

' which meshes with the teeth on of the flywheel, whereby the dynamo orelectric generator is driven, the latter being in electric connectionwith the igniting-chamber, as shown by the wires 01 11 Having thusdescribed my invention, what I claim is 1. In a gas-engine, thecombination with the cylinder having two pistons therein of a crankshafthaving tWo oppositely-disposed cranks and being journaled at or near oneend of the cylinder, a piston-rod connecting the adjacent piston withone crank of the crankshaft, a piston-rod secured to the other piston, aconnecting-rod located outside of the cylinder and having connection atone end with the last-mentioned piston-rod and at its other end with theother crank of the crankshaft, and a verticallymoving bearin g whereinsaid connecting-rod is guided, substantially as set forth.

2. In a gas-engine, the combination with the cylinder having two pistonstherein, of a crank-shaft having two oppositely-disposed cranks andbeing journaled at or near one end of the cylinder, a piston-rodconnecting the adjacent piston with one crank of the crankshaft, apiston-rodsecured to the otherpiston, a connecting-rod located outsideof the cylin- (1 er and having connection at one end with thelast-mentioned piston-rod and at its other end with the other crank ofthe crank-shaft, and a bearing having a combined rocking and verticalmovement wherein said connecting-rod is guided, substantially assetforth.

3. In a gas-engine, the combination with the cylinder having two pistonstherein, of a crankshaft having two oppositely-disposed cranks and beingjournaled at or near one end of the cylinder, a piston-rod connectingthe adjacent piston with one crank of the crankshaft, a piston-rodsecured to the other piston, a connecting-rod located outside of thecylinder and having connection at one end with the last-mentionedpiston-rod and at its other end with the other crank of the crank-shaft,a guideway secured to one side of said cylinder, and a ball-and-socketguide capable of vertical movement in said gnideway, said ball portionbeing capable of movement in the socket and having the saidconnecting-rod sliding therein, substantially as set forth.

4. In a gas-engine, the combination with the cylinder having two pistonstherein, of a crank-shaft having two oppositely-disposed cranks andbeing journaled at or near one end of the cylinder, a piston-rodconnecting the adjacent piston with one crank of the crankshaft, apiston-rod secured to the other piston, a connecting-rod located outsideof the cylinder and having connection at one end with the last-mentionedpiston-rod and at its other end with the other crank of the crank-shaft,a guideway secured to one side of said cylinder, a socket divided intotwo parts guided in said guideway, and a spherical portion located insaid socket wherein said connecting-rod is guided, substantially as setforth.

5. In a gasengine, the combination with the cylinder having two pistonstherein, of a crank-shaft having two oppositely-disposed cranks andbeing journaled at or near one end of the cylinder, a piston-rodconnecting the adjacent piston with one crank of the crank shaft, twopiston-rods secured to the other piston, a laterally-projecting armconnecting the outer ends of the last-mentioned pistonrods together, aconnecting-rod located outside of the cylinder and having connection atone end with said laterally-proj ecting arm and at its other end withthe other crank of the crank-shaft, and a bearing having a combinedrocking and vertical movement wherein said connecting-rod is guided,substantially as set forth. I

6. In a gas-engine, the combination with the cylinder having two pistonstherein, of a crank-shaft having two oppositely-disposed cranks, apiston-rod connecting one crank with one of said pistons, aconnecting-rod lying outside of the cylinder and connecting the othercrank of the crank-shaft with the second piston, and avertically-movable bear ing wherein said connecting-rod is guided.

In testimony whereof I affix my signature in the presence of twosubscribing witnesses.

CHARLES ROSSLER.

W'itnesses:

EMIL NEUHART, OHAs. A. BURKHART.

ICC

